L12_Limiting_Nutrients_Ocean_Acidification_Fate_of_Fossil_Fuel_Carbon

L12_Limiting_Nutrients_Ocean_Acidification_Fate_of_Fossil_Fuel_Carbon

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Unformatted text preview: just fluxes to match data. EsEmates are 2 GtC taken up by forests in NH, ~1 released in tropics, 1.5- 2GtC taken up by ocean Approximately half of the ‘missing’ C is going into terrestrial biomass… How long can this conEnue? Are there other consideraEons? Approximately half of the ‘missing’ C is going into terrestrial biomass… How long can this conEnue? Are there other consideraEons? PotenEal for forest regrowth: nutrient distribuEon in temperate versus tropical forests PotenEal for forest regrowth: nutrient distribuEon in temperate versus tropical forests Laterites – Nutrient- poor soils common in rainforests Thick soils occurring in tropical climates Composed chiefly of Fe- and Al- oxides Leached of nutrients such as K, P, Ca. Very liple organic C Laterites represent the extreme of chemical weathering of rocks *humid climates: high water flux *humid climates: high plant producEvity (=plant acids, high soil CO2) *warm wet climates: year- round biological acEvity *warm climates: high rates of chemical reacEon rule of thumb: 2x increase in rate of reacEon per 10°C increase in temperature Due to intensive...
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This document was uploaded on 03/26/2014 for the course GEC AS.270.103 at Johns Hopkins.

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